Hello
friends,
Last weekend, Radio Habana Cuba
had a special transmission on 17580 kHz, creating an interesting co-channel
situation with VOA Radiogram Saturday at 1600-1630. RHC caused only minor
interference in Europe, but in parts of the Americas, decoding VOA Radiogram was
difficult. In this video by Tim in Colorado, VOA Radiogram and RHC are fairly
evenly matched …
Last weekend’s Olivia 64-2000
provided some good decodes despite poor reception conditions. Here is an
example from a receiver in Sydney, NSW, Australia …
On the other hand, some
listeners were not as successful with Olivia 64-2000, and found that this mode
did not perform as well as MFSK32 – which is much faster. I wonder if the
problem is related to the receiver’s bandwidth. Olivia 64-2000 extends to 2500
Hz above and below the carrier. If any of that data is “clipped,” the decode
might be less than 100%. We could try some experiments with this in future
programs.
This weekend, all the content
will be in MFSK32, except for the transmission schedule in Olivia 64-2000 mixed
with the closing music.
Here is the lineup for VOA
Radiogram, program 160, 23-24 April 2016, all in MFSK32 except where
noted:
1:34 Program
preview
2:44 Can AC and DC power
integrate?*
12:13 Radio Farda TV signal
jammed in Iran*
16:38 New report finds
media freedom declined globally*
26:53 Closing
announcements*
28:17 Olivia 64-2000:
Frequency schedule under music
* with
image
Please send reception reports
to radiogram@voanews.com.
VOA Radiogram transmission
schedule
(all days and times UTC):
Sat 0930-1000 5745 kHz
Sat 1600-1630 17580 kHz
Sun 0230-0300 5745 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina
(all days and times UTC):
Sat 0930-1000 5745 kHz
Sat 1600-1630 17580 kHz
Sun 0230-0300 5745 kHz
Sun 1930-2000 15670 kHz
All via the Edward R. Murrow transmitting station in North Carolina
The Mighty
KBC will transmit a minute of MFSK32
Sunday at about 0220 UTC (Saturday 10:20 pm EDT) on 6040 kHz, via Germany. This
is part of KBC’s North America broadcast at 0000-0300 UTC. Reception reports to
Eric: themightykbc@gmail.com
.
DigiDX will transmit DX news in MFSK32 and perhaps other
modes:
Sunday 2130 UTC - 15770kHz via
WRMI Florida
Sunday 2330 UTC - 11580kHz via
WRMI Florida
Monday 2000 UTC - 6070kHz via
Channel 292 Germany
Consult https://www.facebook.com/digidx/ for
any additions or changes to this schedule.
Thank you for your reception
reports from last weekend. I’m still compiling the gallery of MFSK images from
program 158 and hope to send those out this weekend.
I hope you can tune in and
write in.
Kim
Kim Andrew
Elliott
Producer and
Presenter
VOA
Radiogram
Twitter: @VOARadiogram
(especially active just before, during, and after shows)